NASA initiated an effort to determine if the aging of Kevlar 49/Epoxy composite overwrapped pressure vessels (COPV) affected their performance. This study briefly reviews the history and certification of composite pressure vessels employed on NASA Orbiters. Tests to evaluate overwrap tensile strength changes compared 30 year old samples from Orbiter vessels to new Kevlar/Epoxy pressure vessel materials. Other tests include transverse compression and thermal analyses (glass transition and moduli). Results from these tests do not indicate a noticeable effect due to aging of the overwrap materials.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Kevlar 49/Epoxy COPV Aging Evaluation



    Conference:

    Aging Aircraft 2008 ; 2008 ; Phoenix, AZ, United States


    Publication date :

    2008-04-21


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    Analysis of Potential Ti-Liner Buckling After Proof in Kevlar/Epoxy COPV

    Phoenix, S. / Kezirian, M. | British Library Conference Proceedings | 2009


    Analysis of Potential Ti-Liner Buckling After Proof in Kevlar/Epoxy COPV

    Phoenix, Stuart / Kezirian, Michael | AIAA | 2009



    Composite Overwrapped Pressure Vessels (COPV)

    Lewis, J. / Woodmansee, P. / O'Donnell, T. | NTRS | 2002


    Development of COPV-Related Standards

    Chang, James | AIAA | 2007